The Ashcroft® GL42 low differential indicating pressure transmitter is used for measurement and control of extremely low pressures and flow. A variable capacitance sensor with patented Si-Glas™ technology, ensures high sensitivity and performance. The GL42 provides both local and remote readings and reliable low pressure measurement in HVAC/R and other critical environments.
Features
- Field selectable units of measure
- Large, field-adjustable 4-digit LCD display
- Adjustable display response time
- Excellent overpressure protection
- Ranges available down to 0.1 in. H2O
- CE Mark standard
Applications
- Process Applications
- HVAC/R
- Building Energy Management
- Comfort Control Systems
- Critical Environments
- Fume Hood Control
- Laboratory Pressurization
- Clean Room Pressurization
- Hospital Room Pressurization
- Filter Monitoring
- Laminar Flow
- Flow Measurement
Product Specs
Reference Temperature
25°C
77°F
25°C
77°F
Process Connection Size
1/4 Barbed Male
1/8 NPT Female
1/4 Barbed Male
1/8 NPT Female
Pressure Ranges
Bidirectional: ±0.10 in. H2O to ±15.00 in. H2O
Unidirectional: 0.10 in. H2O to 25.00 in. H2O
Bidirectional: ±0.10 in. H2O to ±15.00 in. H2O
Unidirectional: 0.10 in. H2O to 25.00 in. H2O
Ingress Rating
IP65
IP65
Wetted Material
Buna
Glass
Gold
Media: Clean, Dry Air/Gases Compatible with Aluminum
NOT FOR USE WITH LIQUIDS
PBT
Silicon
Silicone RTV & Brass
Silicone Rubber
Titanium
Buna
Glass
Gold
Media: Clean, Dry Air/Gases Compatible with Aluminum
NOT FOR USE WITH LIQUIDS
PBT
Silicon
Silicone RTV & Brass
Silicone Rubber
Titanium
Non-Wetted Materials
Enclosure: Nylon
Enclosure: Nylon
Outputs
4-20 mA (2 Wire)
4-20 mA (2 Wire)
Stability
±0.5% of span/year
±0.5% of span/year
Accuracy
±0.5%, ±1% of span
Terminal Point Method: includes non-linearity, hysteresis, non-repeatability, zero offset and span setting errors
±0.5%, ±1% of span
Terminal Point Method: includes non-linearity, hysteresis, non-repeatability, zero offset and span setting errors
Certifications & Approvals
-
CE
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